Count Bomb (カウントボム,Kaunto Bomu?) is a bomb originally created to be used in construction sites that countdowns and blows up when the button on top of it is pressed. They can be used as platforms before blowing up, and they can walk in Mega Man 8 and Mega Man: Powered Up (these tend to be red in color). The Count Bomb made its first appearance in Mega Man III at Shadow Man's and Drill Man's stages and then appeared again in Mega Man 6 at Blizzard Man's stage.

The Count Bomb returns in Mega Man 10, found in Nitro Man's stage, the first Wily Castle stage and Special Stage 1. Along the 3 seconds timer from Mega Man 6, they are also set to explode in 5 seconds or 0 seconds.

The Count Bombs in Mega Man Powered Up act similar to Mega Man 8, having both a normal and walking type. Both have the same appearance, so their differences can only be noted when they are active. Their appear in Time Man's stage, Bomb Man's stage, and in the third Castle Wily stage.